Fig. 8: Target-landmark integration produces the fixation-landmark coordinate shift at a cellular level.
From: Integration of landmark and saccade target signals in macaque frontal cortex visual responses
F-L Coordinate Continuum scores are plotted as a function of T-L Parameter Continuum Scores for both a FEF and b SEF. Configuration-dependent fits are used to provide the richest dataset with the broadest distribution. Note that in both cases, the coordinate shift along the vertical axis rises linearly toward center from both fixation-centered extremes [TF(e) and LF(e)] along the horizontal axis, then rises rapidly toward a peak near Landmark-centered coding. In other words, cells that coded both targets and landmarks also showed the biggest coordinate frame shift. The green and blue lines show separate fits (see “Methods” for details) to each side of the data illustrating a hypothetical asymptote at the peak. These patterns were not observed in fits to the shuffled control data (Supplementary Fig. 7).
